The effect of humic substances on germination and early growth of Lamb's Quarters (Chenopodium album agg.)

0364219 - ÚVGZ 2012 RIV PL eng J - Journal Article
Šerá, Božena - Novák, František
The effect of humic substances on germination and early growth of Lamb's Quarters (Chenopodium album agg.).
Biologia. Roč. 66, č. 3 (2011), s. 470-476. ISSN 0006-3088. E-ISSN 1336-9563
Institutional research plan: CEZ:AV0Z60870520; CEZ:AV0Z60660521
Keywords : Chenopodium album * growth stimulation * humic substance * lignite * seed germination
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.557, year: 2011
http://arl-repository.lib.cas.cz/uloziste_av/UEK-B/cav_un_epca-0364219_01.pdf

In order to understand the biological activity of humic substances (HS), the effect of four humic acids (HA) and one fulvic acid (FA) on seed germination and early growth of cosmopolitan weed Chenopodium album agg. were tested. Humic substances of diverse origin were used, namely purified commercial HA, HA isolated from lignite, cambisol and podzol, and FA from mountain spruce forest soil. Data processing by two-way ANOVA has shown that type of the tested substances was a more important factor on seed development than used concentration. The major differences in germination and length of shoots were found in the first days of the experiment. Commercial and lignite HA stimulated the seed germination and growth, while podzol HA inhibited them. After this initial phase, all humic substances stimulated the seed development, but these stimulations were not significant (P < 0.05). At the end of germination test, the greatest stimulation effect (up to 20%) was achieved with the lignite HA.
Permanent Link: http://hdl.handle.net/11104/0199754